SK-8J06防爆型絞車(chē)傳感器安裝在(zài)絞車軸上,可以(yǐ)監測整個鑽進過程(chéng)中絞車軸轉動所產(chǎn)生的角位移。通過計算就可以得到鑽進過程中大鉤的高度(dù)變化,從而得到當前的鑽井深度。防爆型絞車傳感器內(nèi)部裝有檢測開關和(hé)一片鐵質的齒(chǐ)片,當齒片隨絞車軸轉動時,齒片(piàn)會分別穿過兩隻(zhī)相位差為90°的檢測開關的(de)采(cǎi)樣通道,從而發出兩組相應的(de)電脈衝信號,此信號送入儀器經識別處理後就可以得到(dào)相應的角位移方向和變化值。
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